How to delete bunched circle in blender sculpture mode?

How to delete bunched circle in blender sculpture mode?
There was an annoying circle when I sculpted here, how to erase it. Zbrush has erasable dynamesh . I want to know how to do it in blender.

Thanks so much for taking the time to help me

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You should not use a UV sphere for the sculpting start but use the default cube and a subdivision modifier applyed on it. Such a topology is more suitable. You can also try the Ico Sphere. Don’t forget shade Smooth (right Mouse> object menu).

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Thanks you so much, Have a beautiful day!

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I think the easiest thing for you to do here is to use Dynamic Topology, or Dyntopo. It’s in the corner right, and you can select the level of detail you want. I suggest using constant detail, rather than relative, try it out! You can sculpt over that area or just smooth things over.

Please notice it will destroy your topology which is what you want in this case, but if topology is a key factor, you may need to retopo later.

Hope it helps, and happy sculpting!